287 lines
6.7 KiB
C
287 lines
6.7 KiB
C
/* Tests for 64bit AIO in librt.
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Copyright (C) 1998-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#define _LARGEFILE_SOURCE 1
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#include <aio.h>
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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/* Prototype for our test function. */
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extern void do_prepare (int argc, char *argv[]);
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extern int do_test (int argc, char *argv[]);
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/* We have a preparation function. */
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#define PREPARE do_prepare
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/* This defines the `main' function and some more. */
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#include <test-skeleton.c>
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/* These are for the temporary file we generate. */
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char *name;
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int fd;
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void
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do_prepare (int argc, char *argv[])
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{
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size_t name_len;
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name_len = strlen (test_dir);
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name = xmalloc (name_len + sizeof ("/aioXXXXXX"));
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mempcpy (mempcpy (name, test_dir, name_len),
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"/aioXXXXXX", sizeof ("/aioXXXXXX"));
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/* Open our test file. */
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fd = mkstemp (name);
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if (fd == -1)
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error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
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add_temp_file (name);
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}
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static int
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test_file (const void *buf, size_t size, int fd, const char *msg)
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{
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struct stat st;
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char tmp[size];
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errno = 0;
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if (fstat (fd, &st) < 0)
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{
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error (0, errno, "%s: failed stat", msg);
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return 1;
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}
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if (st.st_size != (off_t) size)
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{
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error (0, errno, "%s: wrong size: %lu, should be %lu",
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msg, (unsigned long int) st.st_size, (unsigned long int) size);
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return 1;
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}
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if (pread (fd, tmp, size, 0) != (ssize_t) size)
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{
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error (0, errno, "%s: failed pread", msg);
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return 1;
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}
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if (memcmp (buf, tmp, size) != 0)
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{
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error (0, errno, "%s: failed comparison", msg);
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return 1;
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}
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printf ("%s test ok\n", msg);
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return 0;
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}
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static int
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do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err)
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{
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int go_on;
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size_t cnt;
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int result = 0;
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do
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{
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aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL);
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go_on = 0;
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for (cnt = 0; cnt < nent; ++cnt)
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if (cbp[cnt] != NULL)
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{
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if (aio_error64 (cbp[cnt]) == EINPROGRESS)
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go_on = 1;
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else
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{
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if (aio_return64 (cbp[cnt]) == -1
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&& (allowed_err == 0
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|| aio_error64 (cbp[cnt]) != allowed_err))
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{
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error (0, aio_error64 (cbp[cnt]), "Operation failed\n");
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result = 1;
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}
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cbp[cnt] = NULL;
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}
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}
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}
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while (go_on);
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return result;
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}
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int
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do_test (int argc, char *argv[])
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{
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struct aiocb64 cbs[10];
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struct aiocb64 cbs_fsync;
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struct aiocb64 *cbp[10];
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struct aiocb64 *cbp_fsync[1];
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char buf[1000];
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size_t cnt;
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int result = 0;
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/* Preparation. */
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for (cnt = 0; cnt < 10; ++cnt)
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{
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cbs[cnt].aio_fildes = fd;
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cbs[cnt].aio_reqprio = 0;
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cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
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cbs[cnt].aio_nbytes = 100;
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cbs[cnt].aio_offset = cnt * 100;
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cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
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cbp[cnt] = &cbs[cnt];
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}
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/* First a simple test. */
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for (cnt = 10; cnt > 0; )
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if (aio_write64 (cbp[--cnt]) < 0 && errno == ENOSYS)
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{
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error (0, 0, "no aio support in this configuration");
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return 0;
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}
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/* Wait 'til the results are there. */
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result |= do_wait (cbp, 10, 0);
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/* Test this. */
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result |= test_file (buf, sizeof (buf), fd, "aio_write");
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/* Read now as we've written it. */
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memset (buf, '\0', sizeof (buf));
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/* Issue the commands. */
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for (cnt = 10; cnt > 0; )
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{
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--cnt;
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cbp[cnt] = &cbs[cnt];
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aio_read64 (cbp[cnt]);
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}
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/* Wait 'til the results are there. */
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result |= do_wait (cbp, 10, 0);
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/* Test this. */
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for (cnt = 0; cnt < 1000; ++cnt)
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if (buf[cnt] != '0' + (cnt / 100))
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{
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result = 1;
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error (0, 0, "comparison failed for aio_read test");
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break;
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}
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if (cnt == 1000)
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puts ("aio_read test ok");
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/* Remove the test file contents. */
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if (ftruncate64 (fd, 0) < 0)
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{
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error (0, errno, "ftruncate failed\n");
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result = 1;
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}
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/* Test lio_listio. */
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for (cnt = 0; cnt < 10; ++cnt)
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{
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cbs[cnt].aio_lio_opcode = LIO_WRITE;
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cbp[cnt] = &cbs[cnt];
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}
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/* Issue the command. */
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lio_listio64 (LIO_WAIT, cbp, 10, NULL);
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/* ...and immediately test it since we started it in wait mode. */
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result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
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/* Test aio_fsync. */
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cbs_fsync.aio_fildes = fd;
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cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
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cbp_fsync[0] = &cbs_fsync;
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/* Remove the test file contents first. */
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if (ftruncate64 (fd, 0) < 0)
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{
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error (0, errno, "ftruncate failed\n");
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result = 1;
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}
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/* Write again. */
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for (cnt = 10; cnt > 0; )
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aio_write64 (cbp[--cnt]);
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if (aio_fsync64 (O_SYNC, &cbs_fsync) < 0)
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{
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error (0, errno, "aio_fsync failed\n");
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result = 1;
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}
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result |= do_wait (cbp_fsync, 1, 0);
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/* ...and test since all data should be on disk now. */
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result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");
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/* Test aio_cancel. */
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/* Remove the test file contents first. */
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if (ftruncate64 (fd, 0) < 0)
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{
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error (0, errno, "ftruncate failed\n");
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result = 1;
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}
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/* Write again. */
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for (cnt = 10; cnt > 0; )
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aio_write64 (cbp[--cnt]);
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/* Cancel all requests. */
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if (aio_cancel64 (fd, NULL) == -1)
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printf ("aio_cancel64 (fd, NULL) cannot cancel anything\n");
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result |= do_wait (cbp, 10, ECANCELED);
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/* Another test for aio_cancel. */
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/* Remove the test file contents first. */
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if (ftruncate64 (fd, 0) < 0)
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{
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error (0, errno, "ftruncate failed\n");
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result = 1;
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}
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/* Write again. */
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for (cnt = 10; cnt > 0; )
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{
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--cnt;
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cbp[cnt] = &cbs[cnt];
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aio_write64 (cbp[cnt]);
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}
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puts ("finished3");
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/* Cancel all requests. */
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for (cnt = 10; cnt > 0; )
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if (aio_cancel64 (fd, cbp[--cnt]) == -1)
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/* This is not an error. The request can simply be finished. */
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printf ("aio_cancel64 (fd, cbp[%Zd]) cannot be canceled\n", cnt);
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puts ("finished2");
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result |= do_wait (cbp, 10, ECANCELED);
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puts ("finished");
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return result;
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}
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